html[theme="light"]:root {
    --header-bg: rgba(255, 255, 255, 0.5);
    --header-color: black;
    --header-button-bg: transparent;
    --header-button-color: black;
}

html[theme="dark"]:root {
    --header-bg: rgba(0, 0, 0, 0.5);
    --header-color: white;
    --header-button-bg: transparent;
    --header-button-color: white;
}

#header {
    position: fixed;
    display: flex;
    top: 0px;
    width: 100%;
    height: 50px;
    overflow: hidden;
    align-items: center;
    background-color: var(--header-bg);
    color: var(--header-color);
    backdrop-filter: blur(3px);
    margin: 0;
    border: 0;
    z-index: 100;
}

#header>button {
    width: auto;
    height: auto;
    border: 0;
    margin-left: 20px;
    margin-right: 20px;
    padding: 0;
    vertical-align: middle;
    font-size: 16px;
    font-weight: bold;
    outline: none;
    background-color: var(--header-button-bg);
    color: var(--header-button-color)
}